2004503322421 has 2 divisors, whose sum is σ = 2004503322422. Its totient is φ = 2004503322420.

The previous prime is 2004503322401. The next prime is 2004503322559. The reversal of 2004503322421 is 1242233054002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1452714341796 + 551788980625 = 1205286^2 + 742825^2 .

It is a cyclic number.

It is not a de Polignac number, because 2004503322421 - 2⁵ = 2004503322389 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2004503322421.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2004503322401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1002251661210 + 1002251661211.

It is an arithmetic number, because the mean of its divisors is an integer number (1002251661211).

Almost surely, 2^{2004503322421} is an apocalyptic number.

It is an amenable number.

2004503322421 is a deficient number, since it is larger than the sum of its proper divisors (1).

2004503322421 is an equidigital number, since it uses as much as digits as its factorization.

2004503322421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11520, while the sum is 28.

Adding to 2004503322421 its reverse (1242233054002), we get a palindrome (3246736376423).

The spelling of 2004503322421 in words is "two trillion, four billion, five hundred three million, three hundred twenty-two thousand, four hundred twenty-one".